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Panagiotopoulos paper selected as "Editors' Suggestion"

Postdoctoral fellow Antti-Pekka Hynninen and Professor Athanassios Panagiotopoulos have published a paper in Physical Review Letters that was selected as an “Editors‘ Suggestion” by the journal. The paper presents a series of Monte Carlo calculations for the free energy and phase behavior of spherical charged colloidal particles. It shows that the gas-liquid critical point becomes metastable with respect to a gas-solid phase separation at colloid charges Q>20 times the counterion charge. The critical line for highly charged colloids up to Q=2000 was also determined and a scaling law proposed. The results have applications to understanding thermodynamic stability of colloidal dispersions.